Originally Posted By JBravo223:do you paint the inside of the upper and lower receivers when doing this? just curious because I may want to do a refinish in the future. Also does that stuff adhere to bare aluminum?

I masked off the inside, I dont want the paint to tighten any tolerances or gum up any moving parts.

It does stick to bare aluminum.

<div align=right>This space for rent, but you gotta share it with that crap posted above. </div id=right>